Grundfos 59896775 Pump
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Grundfos 59896775 Pump

Grundfos 59896775 Pump

The Grundfos 59896775 is a professional-grade UP15-29SU circulator pump designed for high-performance domestic hot water recirculation and open-loop hydronic heating. Featuring a robust stainless steel pump housing, this unit is engineered for potable water applications where corrosion resistance is mandatory. Operating on 115v with a 1/12hp motor, this hot water recirculation pump utilizes a canned rotor design, meaning the pump and motor form an integral unit without a mechanical shaft seal. The internal ceramic bearings are lubricated by the pumped liquid, ensuring whisper-quiet operation and eliminating the need for manual maintenance. For contractors, the union connection configuration simplifies field installation, though it is important to note that specific union fittings are typically sold separately to match your existing pipe diameter. With a maximum flow rate of 20.5 GPM and a max head of nearly 10 feet, this hydronic heating pump provides the reliable pressure required for instant hot water delivery in residential and light commercial settings. The integrated thermal protection and high starting torque make it a dependable choice for continuous duty cycles.

Key Benefits
  • Corrosion Resistance: 304 stainless steel construction ensures the unit is suitable for oxygen-rich potable water systems without risk of rust.
  • Quiet Operation: The wet-rotor design utilizes the fluid itself for cooling and lubrication, significantly reducing decibel levels compared to dry-motor alternatives.
  • Simplified Installation: Features quick connect terminals and a 1-1/4" union connection for rapid integration into existing plumbing loops.
  • High Starting Torque: Built with a patented electronic starting unit to overcome debris and buildup after seasonal shutdowns.
  • Potable Water Certified: Specifically engineered for drinking water loops, unlike standard cast-iron models used for closed-loop heating.
Common Questions

Is the UP15-29SU a direct replacement for the obsolete UP15-18SU?
Yes, the Grundfos 59896775 is the recommended technical replacement for the UP15-18SU, sharing compatible dimensions for most pipe arrangements.

Do I need to purchase additional fittings for this pump?
This model uses union connections. You will need to select a Grundfos union fitting set (sold separately) that matches your specific pipe size, such as 3/4" NPT or 1/2" sweat.

Can this pump be installed in any orientation?
The pump must be installed with the motor shaft in a horizontal position. It should not be mounted with the motor pointing vertically up or down to ensure proper bearing lubrication and air venting.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$145.37

Original: $415.35

-65%
Grundfos 59896775 Pump

$415.35

$145.37

Grundfos 59896775 Pump

The Grundfos 59896775 is a professional-grade UP15-29SU circulator pump designed for high-performance domestic hot water recirculation and open-loop hydronic heating. Featuring a robust stainless steel pump housing, this unit is engineered for potable water applications where corrosion resistance is mandatory. Operating on 115v with a 1/12hp motor, this hot water recirculation pump utilizes a canned rotor design, meaning the pump and motor form an integral unit without a mechanical shaft seal. The internal ceramic bearings are lubricated by the pumped liquid, ensuring whisper-quiet operation and eliminating the need for manual maintenance. For contractors, the union connection configuration simplifies field installation, though it is important to note that specific union fittings are typically sold separately to match your existing pipe diameter. With a maximum flow rate of 20.5 GPM and a max head of nearly 10 feet, this hydronic heating pump provides the reliable pressure required for instant hot water delivery in residential and light commercial settings. The integrated thermal protection and high starting torque make it a dependable choice for continuous duty cycles.

Key Benefits
  • Corrosion Resistance: 304 stainless steel construction ensures the unit is suitable for oxygen-rich potable water systems without risk of rust.
  • Quiet Operation: The wet-rotor design utilizes the fluid itself for cooling and lubrication, significantly reducing decibel levels compared to dry-motor alternatives.
  • Simplified Installation: Features quick connect terminals and a 1-1/4" union connection for rapid integration into existing plumbing loops.
  • High Starting Torque: Built with a patented electronic starting unit to overcome debris and buildup after seasonal shutdowns.
  • Potable Water Certified: Specifically engineered for drinking water loops, unlike standard cast-iron models used for closed-loop heating.
Common Questions

Is the UP15-29SU a direct replacement for the obsolete UP15-18SU?
Yes, the Grundfos 59896775 is the recommended technical replacement for the UP15-18SU, sharing compatible dimensions for most pipe arrangements.

Do I need to purchase additional fittings for this pump?
This model uses union connections. You will need to select a Grundfos union fitting set (sold separately) that matches your specific pipe size, such as 3/4" NPT or 1/2" sweat.

Can this pump be installed in any orientation?
The pump must be installed with the motor shaft in a horizontal position. It should not be mounted with the motor pointing vertically up or down to ensure proper bearing lubrication and air venting.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The Grundfos 59896775 is a professional-grade UP15-29SU circulator pump designed for high-performance domestic hot water recirculation and open-loop hydronic heating. Featuring a robust stainless steel pump housing, this unit is engineered for potable water applications where corrosion resistance is mandatory. Operating on 115v with a 1/12hp motor, this hot water recirculation pump utilizes a canned rotor design, meaning the pump and motor form an integral unit without a mechanical shaft seal. The internal ceramic bearings are lubricated by the pumped liquid, ensuring whisper-quiet operation and eliminating the need for manual maintenance. For contractors, the union connection configuration simplifies field installation, though it is important to note that specific union fittings are typically sold separately to match your existing pipe diameter. With a maximum flow rate of 20.5 GPM and a max head of nearly 10 feet, this hydronic heating pump provides the reliable pressure required for instant hot water delivery in residential and light commercial settings. The integrated thermal protection and high starting torque make it a dependable choice for continuous duty cycles.

Key Benefits
  • Corrosion Resistance: 304 stainless steel construction ensures the unit is suitable for oxygen-rich potable water systems without risk of rust.
  • Quiet Operation: The wet-rotor design utilizes the fluid itself for cooling and lubrication, significantly reducing decibel levels compared to dry-motor alternatives.
  • Simplified Installation: Features quick connect terminals and a 1-1/4" union connection for rapid integration into existing plumbing loops.
  • High Starting Torque: Built with a patented electronic starting unit to overcome debris and buildup after seasonal shutdowns.
  • Potable Water Certified: Specifically engineered for drinking water loops, unlike standard cast-iron models used for closed-loop heating.
Common Questions

Is the UP15-29SU a direct replacement for the obsolete UP15-18SU?
Yes, the Grundfos 59896775 is the recommended technical replacement for the UP15-18SU, sharing compatible dimensions for most pipe arrangements.

Do I need to purchase additional fittings for this pump?
This model uses union connections. You will need to select a Grundfos union fitting set (sold separately) that matches your specific pipe size, such as 3/4" NPT or 1/2" sweat.

Can this pump be installed in any orientation?
The pump must be installed with the motor shaft in a horizontal position. It should not be mounted with the motor pointing vertically up or down to ensure proper bearing lubrication and air venting.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.